Key-cutting machine.



H. L. EDGE.

KEY CUTTING MACHINE.

APPLICATION FILED MAY 4, 1915.

L1?2,265, Patented Feb. 22,1916.

2 sHEETS SHEET I.

H. L. EDGE.

K-EY CUTTING MACHINE.

APPLICATION men MAY 4. 1915.

1 a 172,265 v Patented Feb. 22, 1916.

2 SHEETS'SHEET 2.

mm I I I I.

. key and a key blank, a head to retain said amazes.

are sraaras Farmer anion.

HORACE EDGE, OF NEW YORK, N. Y.

I KnY-eu'rrrne MACHINE.

Specification of Letters E 'ate nt. Patenfi gdl Fab, 22 11916,

Application filed May 4, 1915. Serial No. 25,694. r I

To all whom it may concern: 7

Be it known that I, HORACE L. EDGE, a

citizen of the United States, and resident of New York city, borough of Brooklyn,'in the county of. Kings and State of l; Te'w York, have invented certain new and useful Improvements in Key-Cutting Machines, of"

which the following is a specification.

The object of my invention is to provide simple and efficient means to enable a key blank to be cut to correspond to amaster key, a further object being to provide such a device which shall be simple and cheap to menu acture, easy to operate, and not liable to get out of order.

The invention comprises a holder for a holder, a stop on said head to enact with different portions of a key, and a member movable relatively to said holder and head to retain the key in coaction with said stop The invention further comprises novel details of improvement. and combinations of parts that'will be more fully hereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings forming part hereof, where- Figure 1 is a front view of a machine embodying my invention; Fig. 2 is a section on the line 2, 2, in Fig. 1, part of the casing being removed; Fig. 3 is-a section on the line 3, 3, .in Fig. 2; Fig. 4 is a-perspective view, illustrating my improvements adapted to be used with a file, and Fig. 5 is a side view of Fig. 4,-on a reduced scale.

' Similar numerals of reference indicate corresp'ondingparts in the several views.

My improved key and blank holding and adjustingjdevice is. arranged as follows: A holder 1, shown in the form of 'a suitable block, is provided with means to temporarily retain a key 2 and a key blank 3 to be out. For this purpose I have shown the holder provided with a recess on one side face at 4 and a clamping member at one side thereof, adapted to clamp the key, and said holder has a recess 6 above the recess 4 and a clam ing member 7 opposed thereto adapted to 0 amp the key blank 3. Said members 5 and 7 may be secured against the keys by positions on the holder. At 10 is a head to receive the holder 1, in such manner that said holder will be held from lateral move ments but may he slid endwise with respect to said head and may be raised and lowered therein. For this purpose said head is shown provided with spaced jaws 10 providing a space therebetween within which holder 1 is adapted to be fitted. One of the aws 10 is shown provided with a stop 11, projecting into the space between the jaws and over the key 2, when the latter is held in the holder. The lower edge of stop '11 is shown beveled or tapered at 11 to fit snugly in the recesses or cuts of thekey, to

\ retain the latter against upward and lateral shiftingwhen the holder is set in position for the blank to be out. To permit the holder to be shifted to the required position with respect to stop 11, and to firmly retain the key 2 against said stop, ,I provide a wedge-like member 12 that is guided upon head 10 to slide under holder 1, whereby the latter may be raised and lowered and shifted laterally within the holder according to the position of member 12. Member .12 is shown guided in a recess 10 in the base of head 10,

and the under surface of member 1 is shown provided with a recess l' receiving member 12, whereby sald parts are retained in proper relative positions. The surface of the holder 10 upon which the wedge-like member 12 rests is shown inclined upwardly and rearwardly, at 10, and member 12 is shown suitably tapering so that as said member is moved inwardly under holder 1, the latter will be raised and retained in a horizontal direction to correspondin ly retain the key and key blank in the di erent positions of adjustment of wedge-like member 362. To keep member 12 from being displaced from head 10 I have shown said member provided with a longitudinal slot 12*. receiving a screw 13 set in head 10, whereby said member 12 ma be adjusted back and forth as required.

llhen a key and blank are secured in the holder, the latter may be placed within head plates 24 secured on thetable 21.

10, member I 12 having been pulled outwardly, with one of the recesses or notches of the key 2 under the stop 11, and wedgemember 12 will bepushed under the holder,

(the holder being held from sliding with the wedge-member), to cause the key to be provided with recesses 16 to guide a file, 'the bottoms -of-therecesses being in position to enable the file edge to coact with a blank 3. The guide 15 may be made of hardened steel and secured on aws 10 by screws 17, or in any suitable manner. The deeper the notch or recess in a key the deeper the file may cut into the blank, the recesses 16 being shown directly over the stop 11, and the shallower the notch or recess in the key the shallower will be the cut made in the blank over such recess.

vise, or mav be secured upon a. bench or the like by passing screws or bolts through apertured ears 18, whereby the device is adapted for filing, the key blanks by hand.

In Figs. 1, 2 and 3 I have illustrated means for cutting the key blanks by means of a rotarv cutter,-and for sliding the holder 1 and head 10 with respect to said cutter to i move the key blank thereunder. For such purpose I have shown a frame.20 having a 'table or bed 21 provided witha transverse guideway 22, receiving the head 10, whereby the latter may be moved back and forth on said table. The head 10 is shown provided with lateral guides 23 under the guiding At 25 is alever or arm shown pivotally supported upon table 21, at 26, which lever is shown receiving a stud 27 passed through a slot 28 in the table and secured in head 10, an anti-frictionroller 29 being provided upon said stud in said slot, whereby as said lever is moved back and forth head 10 with the key holder will be reciprocated. Table 21 may be adjustably held upon frame ,20 by screws 30 entering said frame 20, said table having slots 31 receiving said screws to permit vertical adjustment of the table and the key holder. A set screw 32 secured upon frame 20 and coacting with table 21 serves to aid in adjustment of the table and for retaining it in set position. Above the table and key holder is journaled a shaft 33, shown mounted in bearings in' asuitable two-part housing or casing 34 carried by frame20, said shaft having a pinion 35 meshing with a gear 36 carried by a shaft 37 journaled in a bearing on said housing. A suitable cut- The head 10 is shown in Figs. lt-and 5 as adapted to be held in a ter 38 is detachably secured upon shaft 35 in an ordinary manner, as by a nut 39 holding said cutter against a shoulder 40 on said shaft. When the shaft 37 is rotated, as by a handle 41, the cutter will be rotated at the desired speed, shaft 33 being shown provided with a fly-wheel 12 to balance the rotation of the cutter. The cutter is in such relation to the key holder 1 and the head 10 that when a key and key blank are secured in said holder, and said holder is adjusted in' head 10 and secured by means of member 12, with the key against stop 11, in the manner-before described, the key blank 3 will be in position to be engaged by the cutter.

The parts may be set for cutting a blank 3 -with the head 10 adjusted, say to the left,

as in Fig. 3, and then when the cutter is rotated, the key blank may be drawn under the cutter by moving lever 25 and with it head 10, the holder, the key and the key blank, to the right in Fig.3, whereby as the blank passes under the cutter, a notch or recess willbe cut in the blank to a depth.

in accordance with the;position" in which the key is retainedagainst stop 11. Each of thenotches or recessesto be cut in the key blank may be 'cut by the cutter in themanner described after the head 1 has been shifted and retained by member 12 against stop 11, for each cut to be made.

between the jaws 10.

Each time a key and key blank are to be set first drawing back the Changes may be made in-Mthe details of construction and arrangement of parts shown and described, as the same may be varied, within the scope of the appended claims, without departing from the spirit I of the invention. I

Havlng now described my inventlon what I claim is.:-

1. A key cutting machine comprising a holder having means to hold a key and a key blank on different levels, a head adapted to adjustably receive said holder, said head having a stop to engage the key, and means cooperative with said holder and head for retaining the key in set rigid position against saidstep.

2. A key cuttlng machine comprising a holder having means to hold a key and a key blank on different levels, a head adapted to aclJustably receive said holder,

'said head having a stop to engage the key, and a member movable relatively to and between said holder and head and adapted to holder having means to hold a key and a key blank on different levels, a head adapted awaaee to receive said holder, said head having a stop to engage the key, and a wedge like" member movable relatively to said holder and head for raising the holder and retaining the key against said stop.

4. A key cutting machine comprising a holder having means to retain a key and key blank on different levels, a head having spaced jaws adapted to adjustably receive said holder therebetween, one of said jaws having a stop to coact with the key on the holder, and a member movable between the base of the head and said holder for retaining the key against said stop.

5. A key cutting machine comprising aholder having means to retain a key and key blank on different levels, a head having spaced jaws adapted to adjustably receive said holder therebetween, one of said jaws having a stop to coact with the key on the holder,. and a wedge-like member between the base of the head and said holder, said base having an inclined surface for said member.

6. A key cutting machine comprising a holder having means to hold a key and a key blank on different levels, a head adapted to adjustably receive said holder, said head having a stop to engage the key, a member movable relatively to and between said holder and head and adapted to cause the holder to be raised to retain said stop in difi'erent recesses of the key, said member having a slot, said head having a stop received in said slotfor retaining the member slidably upon said head.

7. A. key cutting machine comprising a holder having means to retain a key and key blank on different levels, a head having spaced jaws adapted to adjustably receive said holder therebetween, one of said ja'ws having a stop to coact with the key on the holder, a member movable between the base of the head and said holder for retaining the key against said stop, said jaws having guides at their upper edges, said guides 8. A key cutting machlne comprlsing a holder having means to hold akey and a key blank on difierent levels, a head having a space therein, said holder being fitted within said space for lateral and vertical adjustment'therein, said head having a stop to engage the key, and means between the holder and head for forcing the holder upwardly to retain the key against said stop.

9. A key cutting machine comprising a holder having means to hold a key and a key blank on different levels, a head adapted to adjustably receive said holder, said head having a stop to engage the key, means cooperative with said holder and head for retaining the key in set rigid position against said stop, a frame provided with guides for said head, a cutter above said head, means for rotatively supporting said cutter, and means carried by the frame and coactive Withsaid head to permit moving the latter back and forth along the frame in a direction substantially transverse to the axis of the cutter.

10. A key cutting machine comprising a holder having means to hold a key and a key blank on dilferent levels, a head adapted to receive said holder, said head having a stop to engage the key, means cooperative with said holder and head for retaining the key against said stop, a frame provided with guides for said head, a lever carried by said frame, a stud connecting the lever with said head, a shaft above the head, a cutter carried by said shaft, and means to rotate said shaft, whereby the head. may be moved beneath the cutter.

Signed-at New York city, in the county of New York, and State of New York, this 3rd day of May, A. D. 1915.

HORACE L. EDGE.

Witnesses:

T. F. BoURNE, MARIE F. Wammerrr. 

